Overlay GRIB data on satellite images in OpenCPN using WxtoImage, Opencpn and Weatherfax_pi plugin.
Detailed process explanation from retrieving the satellite image to using Weatherfax to locate the satellite image on the chart, and then comparing the satellite data to grib files. by Littlechay (Chris). Thank you, Chris.
Overlay GRIB data on satellite images in OpenCPN
Chris also uses Wx2Img which is found https://wxtoimgrestored.xyz/about/